DC Chemicals Limited
China
Product Name: Propentofylline
Price: $Inquiry/100mg $Inquiry/250mg $Inquiry/500mg
Purity: 98.0%
Stocking Period: 3 Day
Contact: Tony Cao
Email: sales@dcchemicals.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3-METHYL-1-(5-OXOHEXYL)-7-PROPYL-1H-PURINE-2,6(3H,7H)-DIONE
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

55242-55-2

55242-55-2 structure

Name: Propentofylline
Chemical Name: Propentofylline
CAS Number: 55242-55-2
Molecular Formula: C₁₅H₂₂N₄O₃
Molecular Weight: 306.360
Catalog: API Nervous system medication Brain metabolism regulating drug
Create Date: 2018-03-28 08:00:00
Modify Date: 2025-08-21 13:03:01
Propentofylline is a xanthine-derivative that inhibits adenosine uptake and blocks phosphodiesterase activity. Propentofylline has neuroprotective, antiproliferative, and anti-inflammatory effects that improve cognition and dementia severity in patients with Alzheimer's disease or vascular dementia.

Name	Propentofylline
Synonyms	3-Methyl-1-(5-oxohexyl)-7-propyl-3,7-dihydro-1H-purine-2,6-dione 1H-Purine-2,6-dione, 3,7-dihydro-3-methyl-1-(5-oxohexyl)-7-propyl- Propentofylline 3-methyl-1-(5-oxohexyl)-7-propylpurine-2,6-dione Albert 285 MFCD00133785

Description	Propentofylline is a xanthine-derivative that inhibits adenosine uptake and blocks phosphodiesterase activity. Propentofylline has neuroprotective, antiproliferative, and anti-inflammatory effects that improve cognition and dementia severity in patients with Alzheimer's disease or vascular dementia.
Related Catalog	Signaling Pathways >> Metabolic Enzyme/Protease >> Phosphodiesterase (PDE) Research Areas >> Inflammation/Immunology Research Areas >> Neurological Disease
References	[1]. Hudlicka O, Komarek J, Wright AJ. The effect of a xanthine derivative, 1-(5' oxohexyl)-3-methyl-7-propylxanthine (HWA 285), on heart performance and regional blood flow in dogs and rabbits. Br J Pharmacol. 1981;72(4):723-730. [2]. Sweitzer S, De Leo J. Propentofylline: glial modulation, neuroprotection, and alleviation of chronic pain. Handb Exp Pharmacol. 2011;(200):235-250.

Density	1.3±0.1 g/cm3
Boiling Point	541.4±56.0 °C at 760 mmHg
Melting Point	64-66ºC
Molecular Formula	C₁₅H₂₂N₄O₃
Molecular Weight	306.360
Flash Point	281.2±31.8 °C
Exact Mass	306.169189
PSA	78.89000
LogP	1.38
Vapour Pressure	0.0±1.4 mmHg at 25°C
Index of Refraction	1.602
Storage condition	−20°C
Water Solubility	H2O: soluble12.4mg/mL

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UO8438700

CHEMICAL NAME :: 1H-Purine-2,6-dione, 3,7-dihydro-3-methyl-1-(5-oxohexyl)-7-propyl-

CAS REGISTRY NUMBER :: 55242-55-2

BEILSTEIN REFERENCE NO. :: 1156290

LAST UPDATED :: 199612

DATA ITEMS CITED :: 10

MOLECULAR FORMULA :: C15-H22-N4-O3

MOLECULAR WEIGHT :: 306.41

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 940 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 31,357,1986

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 196 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 31,357,1986

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 338 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 31,357,1986

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 180 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 31,357,1986

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 780 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 31,357,1986

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 346 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 31,357,1986

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 450 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 31,357,1986

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 168 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 31,357,1986

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 405 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia Gastrointestinal - changes in structure or function of salivary glands

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 31,357,1986

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 89 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia Gastrointestinal - changes in structure or function of salivary glands

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 31,357,1986

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H302-H312-H332
Precautionary Statements	P280
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xn: Harmful;
Risk Phrases	R20/21/22
RIDADR	NONH for all modes of transport
RTECS	UO8438700
HS Code	2933990090

55242-64-3

~88%

55242-55-2

Literature: Hoechst Aktiengesellschaft Patent: US4289776 A1, 1981 ; US 4289776 A

10226-29-6

55242-64-3

~92%

55242-55-2

Literature: Hoechst Aktiengesellschaft Patent: US5475002 A1, 1995 ;

Precursor 2
55242-64-3 10226-29-6
DownStream 1
56395-62-1

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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